"Though Windows 7 doesn't quite have the same experience when it comes to resolution and scaling control as OS X does - it can be a bit of a chore to get it just the way you like it - it's still quite useable on the Retina MacBook Pro's 15" 2880 x 1800 pixel screen. I recommend running Windows at full resolution with the 150 percent scaling setting - that seemed to give the best overall usability. 'Retina' class desktop displays are still a relative rarity today, so it will be some time before software developers adapt applications to best take advantage of such a resolution. In the meantime, you should have no trouble running Windows on the Retina MacBook Pro if the need arises." A look at how Windows 8 handles the display would've been nice, too.

The are basically two different categories of applications in Windows when it comes to resolution scaling: those that are DPI aware and those that aren't. Only applications that explicitly call SetProcessDPIAware are considered DPI aware.

If an application is not DPI aware, Windows automatically scales the window and it will look correct. However, this is an image scale and therefore won't take advantage of the higher resolution of the retina display. It will look identical to a 1440x900 monitor.

If an application IS DPI aware, then it is the application itself that does the scaling. So all those screenshots are applications that declared themselves DPI aware and yet failed to implement it correctly.